Improvement of Power Quality in Distribution System using DVR

Today PQ(Power quality) is major issue in production/power industries and distribution network. As there are numerous PQ problems but the sag and swell are the important one. We have various CPD’s (custom power devices) used for linear and non-linear loads that can eliminate/mitigate the voltage sag and swell and finally restore’s the system to the pre-fault condition. This paper presents improvement of voltage using DVR for balanced /unbalanced voltage sags/ swells and therefore MATLAB/SIMULINK based simulation Results proved the efficiency of DVR to mitigate/eliminate voltage sags /swells